Threatened Swallowtail Butterflies of the World: The IUCN Red Data Book

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IUCN, Jan 1, 1985 - Science - 401 pages
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Page 3 - ... the populations are decreasing because of over-exploitation, extensive destruction of habitat or other environmental disturbance; taxa with populations that have been seriously depleted and whose ultimate security has not yet been assured; and taxa with populations that are still abundant but are under threat from severe adverse factors throughout their range. Rare. 'Taxa with small world populations that are not at present Endangered or Vulnerable, but are at risk.
Page 3 - Taxa with small world populations that are not at present Endangered or Vulnerable, but are at risk. These taxa are usually localized within restricted geographical areas or habitats or are thinly scattered over a more extensive range. Indeterminate (I). Taxa known to be Extinct, Endangered, Vulnerable or Rare, but where there is not enough information to say which of the four categories is appropriate.
Page 3 - Taxa in danger of extinction and whose survival is unlikely if the causal factors continue operating. Included are taxa whose numbers have been reduced to a critical level or whose habitats have been so drastically reduced that they are deemed to be in immediate danger of extinction. Vulnerable (V) Taxa believed likely to move into the Endangered category in the near future if the causal factors continue operating.
Page 116 - Studies on the chemistry of pigments in the Lepidoptera, with reference to their bearing on systematics.
Page 129 - Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Mauritania, Niger, Nigeria, Senegal, Sierra Leone, Togo, and Upper Volta.
Page 3 - Endangered' and 'Vulnerable' categories may include, temporarily, taxa whose populations are beginning to recover as a result of remedial action, but whose recovery is insufficient to justify their transfer to another category. RARE (R) Taxa with small world populations that are not at present 'Endangered' or 'Vulnerable', but are at risk.
Page 3 - Taxa formerly included in one of the above categories, but which are now considered relatively secure because effective conservation measures have been taken or the previous threat to their survival has been removed.
Page 3 - Endangered (E) Taxa in danger of extinction and whose survival is unlikely if the causal factors continue operating. Included are taxa whose numbers have been reduced to a critical level or whose habitats...
Page 3 - ... and whose survival is unlikely if the causal factors continue operating. Included are taxa whose numbers have been reduced to a critical level or whose habitats have been so drastically reduced that they are deemed to be in immediate danger of extinction. Also included are taxa that may be extinct but have definitely been seen in the wild in the past 50 years. Vulnerable Species believed likely to move into the 'Endangered' category in the near future if the causal factors continue operating.
Page 78 - ... the Federal Republic of Germany, the Netherlands and the United Kingdom. 20. Is it in fact necessary, however, to work out a definition for the concept of 'matters relating to tort, delict and quasi-delict"?

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